The form of the lien in RCW 41.05A.070 must be substantially as follows:
I, . . . . . ., being first duly sworn, on oath state: That I am . . . . . . (title); that I have read the foregoing Statement of Lien, know the contents thereof, and believe the same to be true.
Signed and sworn to or affirmed before me this . . . . day of . . . . . ., . . . .